What is the percentile sound level how to calculate
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Answer:
Explanation:
percentile sound levels LN are commonly used for environmental noise monitoring, such as road traffic or community noise assessments. In these applications, noise levels fluctuate significantly over time, and level statistics help to better understand what's going on.
For example, L90 describes the level which was exceeded for 90% of the time. That is, for 90% of the time for the period measured, the noise level was at least above the L90 level. The L90 level is often used as an approximation of the background noise level. On the other side of the scale, L01 describes the level which was exceeded for only 1% of the time. That is, for 1% of the time for the period measured, the noise level was at least above the L01 level. The L01 level is sometimes used as an approximation of the maximum level Lmax.